3 years ago

Mary traveled 200 miles at an average rate of 50 miles per hour. how did it take her?

Mathematics

1 answer:

almond37 [142]3 years ago

6 0

It took her 4 hours.

Since she travels 50 miles in just one hour, in four hours she could drive 200 miles. :)

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Gary had a 40% discount for new tires. The sale price of a tire was $96.25. What was the original price of the tire? Round to th

EastWind [94]

If the price after the discount is subtracted is $96.25 then this is what you do

u times 0.40 x 96.25 which is 38.5 so since you are wanting to know what the price was before the discount you would add 38.5 to 96.25 and when you do that your answer is 134.75

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3 years ago

Find the slope of the line that passes through (1,5) and (10, 10).

Oliga [24]

Answer:

$\frac{5}{9}$

Step-by-step explanation:

The formula for the slope with two points given would be

$\frac{y_2-y_1}{x_2-x_1}$

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3 years ago

A right triangle's height is 3 times the length of its base. if the area of the triangle is 486, what is the height?

Irina-Kira [14]

The formula of the area of a triangle:
$A_\Delta=\dfrac{bh}{2}$
b - the bash - the height
We have:
b - the base3b - the height486 - the area

Substitute:
$\dfrac{3b\cdot b}{2}=486\ \ \ |\cdot2\\\\3b^2=972\ \ \ |:3\\\\b^2=324\to b=\sqrt{324}\\\\b=16\to h=3b=3\cdot18=54$
Answer: The length of the height is equal 54 units.

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3 years ago

Please help meeeeedeededdesesseeeee

Rudiy27

Answer:

78.5

Step-by-step explanation:

A=πr^2 is the formula. Since you're using pi as 3.14, 3.14 times 5^2 is 78.5 (5^2 is 25 because 5x5=25)

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2 years ago

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